Journal article

Histone modifications associated with gene expression and genome accessibility are dynamically enriched at Plasmodium falciparum regulatory sequences

Jingyi Tang, Scott A Chisholm, Lee M Yeoh, Paul R Gilson, Anthony T Papenfuss, Karen P Day, Michaela Petter, Michael F Duffy

EPIGENETICS & CHROMATIN | BMC | Published : 2020

Abstract

BACKGROUND: The malaria parasite Plasmodium falciparum has an unusually euchromatic genome with poorly conserved positioning of nucleosomes in intergenic sequences and poorly understood mechanisms of gene regulation. Variant histones and histone modifications determine nucleosome stability and recruit trans factors, but their combinatorial contribution to gene regulation is unclear. RESULTS: Here, we show that the histone H3 acetylations H3K18ac and H3K27ac and the variant histone Pf H2A.Z are enriched together at regulatory sites upstream of genes. H3K18ac and H3K27ac together dynamically mark regulatory regions of genes expressed during the asexual life cycle. In contrast, H3K4me1 is deple..

View full abstract